dLSP 501X Series – Split Syringe Pumps for High‑Precision Micro‑ and Nanofluidics

Modular high‑precision syringe pumps with external drive unit, touchscreen controller, and RS485 control.

dLSP 501X Series – Split‑Syringe Pump Unit

Description

The dLSP 501X Series split syringe pumps are designed for applications where the highest precision, minimal footprint, and maximum system flexibility are required. By physically separating the controller and the drive unit, even complex experimental setups can be implemented in a space‑saving manner—ideal for handheld devices and clamping systems.

The series enables highly precise, low‑pulsation fluid delivery from the nano‑ to milliliter range, with real‑time adjustment of the flow rate during both infusion and withdrawal.

Key features

Digital split design with external drive unit for compact and flexible system integration
Highly precise, low‑pulsation fluid delivery for extremely small liquid volumes
Very wide flow rate range – from below 0.01 nL/min to over 90 mL/min (model‑dependent)
7″ HD touchscreen controller for simultaneous control of up to 4 drive units
RS485 interface with Modbus RTU, PLC‑compatible – up to 40 drive units independently controllable
Comprehensive programming functions (constant, ramp, delay, repeat, multi‑profile operation)
Real‑time adjustment of the flow rate during operation
User management with three access levels and password protection
Logbook and electronic signature to meet 21 CFR Part 11 requirements
High syringe compatibility from 0.5 µL up to 60 mL, depending on drive unit type

Model overview

The dLSP 501X Series includes multiple drive units designed for different force and volume ranges:

dLSP 501S – ultra‑compact, ideal for microfluidics (0.5–250 µL)
dLSP 501L – extended volume range up to 1 mL
dLSP 501W – high force version, supports syringes from 5 µL to 60 mL
dLSP uC – powerful controller for multi‑drive unit systems

Typical areas of application

Microfluidics & microfluidic chips
Electrospraying & electrospinning
Capillary electrophoresis
Cell injections
Neuroscience
Drug discovery & pharmacological research
Organic synthesis
Toxicology & life sciences research

Specifications of pump types

Product model	dLSP 501S	dLSP 501L	dLSP 501W
Control mode – Touchscreen	Touchscreen controller for controlling 1–4 separate drive units with preset parameters	Touchscreen controller for controlling 1–4 separate drive units with preset parameters	Touchscreen controller for controlling 1–4 separate drive units with preset parameters
Control mode – Computer	Dedicated PC control software, independent control of up to 10 drive units	Dedicated PC control software, independent control of up to 10 drive units	Dedicated PC control software, independent control of up to 10 drive units
Control mode – PLC / external controller	RS485 interface (Modbus RTU), independent control of up to 40 drive units	RS485 interface (Modbus RTU), independent control of up to 40 drive units	RS485 interface (Modbus RTU), independent control of up to 40 drive units
Display	7‑inch HD LCD	7‑inch HD LCD	7‑inch HD LCD
Operating modes	Infusion, withdrawal, infusion/withdrawal, withdrawal/infusion, programming (PC software)	Infusion, withdrawal, infusion/withdrawal, withdrawal/infusion, programming (PC software)	Infusion, withdrawal, infusion/withdrawal, withdrawal/infusion, programming (PC software)
Drive unit stroke	70 mm	70 mm	95 mm
Pusher advance per microstep	0.095 µm/µstep	0.099 µm/µstep	0.098 µm/µstep
Linear speed	0.6096 µm/min – 182.88 mm/min	0.635 µm/min – 190.5 mm/min	0.625 µm/min – 143.75 mm/min
Linear speed resolution	0.6096 µm/min	0.635 µm/min	0.625 µm/min
Linear travel accuracy	≤ ±0.35% (when travel ≥ 30% of total stroke)	≤ ±0.35% (when travel ≥ 30% of total stroke)	≤ ±0.35% (when travel ≥ 30% of total stroke)
Linear CV	0.03% (rated travel)	0.03% (rated travel)	0.03% (rated travel)
Max. linear force	15 N (adjustable 20–100%)	30 N (adjustable 20–100%)	100 N (adjustable 20–100%)
Syringes (manufacturer‑built or user‑defined)	0.5 µL – 250 µL	0.5 µL – 1000 µL	5 µL – 60 mL
Flow rate calibration	Calibration of user‑defined syringes to improve flow rate and dispensing accuracy	Calibration of user‑defined syringes to improve flow rate and dispensing accuracy	Calibration of user‑defined syringes to improve flow rate and dispensing accuracy
Parameter methods	Up to 100 parameter methods stored; import/export via USB flash drive	Up to 100 parameter methods stored; import/export via USB flash drive	Up to 100 parameter methods stored; import/export via USB flash drive
Programming functions	Workflow‑based PC programming; infusion, withdrawal, delay, repeat; constant and ramp profiles	Workflow‑based PC programming; infusion, withdrawal, delay, repeat; constant and ramp profiles	Workflow‑based PC programming; infusion, withdrawal, delay, repeat; constant and ramp profiles
Screen lock	Prevents misoperation	Prevents misoperation	Prevents misoperation
User access control	Three access levels (administrator, developer, operator) with individual passwords	Three access levels (administrator, developer, operator) with individual passwords	Three access levels (administrator, developer, operator) with individual passwords
Log record	Complete recording of pump operating data; export via USB flash drive	Complete recording of pump operating data; export via USB flash drive	Complete recording of pump operating data; export via USB flash drive
Electronic signature	Electronic signatures in the log records compliant with FDA 21 CFR Part 11	Electronic signatures in the log records compliant with FDA 21 CFR Part 11	Electronic signatures in the log records compliant with FDA 21 CFR Part 11
Pump state at power‑up	Default: stop; continuation of operation configurable via communication commands	Default: stop; continuation of operation configurable via communication commands	Default: stop; continuation of operation configurable via communication commands
Fast forward / reverse	Infusion or withdrawal at maximum speed	Infusion or withdrawal at maximum speed	Infusion or withdrawal at maximum speed
Controller dimensions (L × W × H)	187 × 123 × 39 mm	187 × 123 × 39 mm	187 × 123 × 39 mm
Controller weight	0.6 kg	0.6 kg	0.6 kg
Controller power supply	AC 90–260 V / 30 W	AC 90–260 V / 30 W	AC 90–260 V / 30 W
Drive unit dimensions (L × W × H)	170 × 35 × 58 mm	180 × 45 × 74 mm	235 × 103 × 91 mm
Drive unit weight	0.31 kg	0.51 kg	1.65 kg
Drive unit power supply	DC 24 V / 2 W	DC 24 V / 3.6 W	DC 24 V / 7.5 W

Compatible syringes

Syringe	Syringe ID (mm)	dLSP 501S (Reference flow rate)	dLSP 501L (Reference flow rate)	dLSP 501W (Reference flow rate)
0.5 µL	0.10	0.0048 nL/min – 1.435 µL/min	0.0050 nL/min – 1.495 µL/min
1 µL	0.15	0.0108 nL/min – 3.230 µL/min	0.0112 nL/min – 3.365 µL/min
2 µL	0.20	0.0191 nL/min – 5.742 µL/min	0.0199 nL/min – 5.982 µL/min
5 µL	0.35	0.0586 nL/min – 17.59 µL/min	0.0611 nL/min – 18.32 µL/min	0.0601 nL/min – 13.82 µL/min
10 µL	0.50	0.1196 nL/min – 35.89 µL/min	0.1246 nL/min – 37.39 µL/min	0.1227 nL/min – 28.21 µL/min
25 µL	0.80	0.3063 nL/min – 91.88 µL/min	0.3190 nL/min – 95.71 µL/min	0.3140 nL/min – 72.22 µL/min
50 µL	1.10	0.5790 nL/min – 173.7 µL/min	0.6032 nL/min – 180.9 µL/min	0.5937 nL/min – 136.5 µL/min
100 µL	1.46	1.020 nL/min – 306.0 µL/min	1.063 nL/min – 318.8 µL/min	1.046 nL/min – 240.5 µL/min
250 µL	2.30	2.531 nL/min – 759.4 µL/min	2.637 nL/min – 791.1 µL/min	2.595 nL/min – 596.9 µL/min
500 µL	3.25		5.265 nL/min – 1,580 µL/min	5.182 nL/min – 1,192 µL/min
1000 µL	4.61		10.594 nL/min – 3,178 µL/min	10.43 nL/min – 2,398 µL/min
2 mL	9.00			39.74 nL/min – 9.140 mL/min
5 mL	13.10			84.20 nL/min – 19.37 mL/min
10 mL	16.60			135.2 nL/min – 31.10 mL/min
20 mL	19.00			177.1 nL/min – 40.74 mL/min
30 mL	23.00			259.5 nL/min – 59.69 mL/min
60 mL	29.14			416.6 nL/min – 95.82 mL/min